IndexError: index out of range: 7

问题:

I am working with an Oracle EPM Product called Financial Data Quality Management Enterprise Edition (FDMEE). I have written a Jython script to parse a data file and push it to a custom table within the FDMEE product schema.

It works fine when I am pushing a subset of data file. But when I parse the entire data file, it fails with the error IndexError: index out of range: 7.

Following is the error message I receive :

File "\\vmhodvesip4\D$\SVESI7\Custom\FDMEEApps\BFRVN/data/scripts/event/BefImport.py", line 5, in <module>

    if row[7]=='JAN':

IndexError: index out of range: 7

Following is the code I use :

import csv

recReader = csv.reader(open('D:/SVESI7/Custom/FDMEEApps/BFRVN/inbox/BF_Reven_Load/Test03big.txt'), delimiter='!')
for row in recReader:
    if row[7]=='JAN':
        period_num = '1'
    elif row[7]=='FEB':
        period_num = '2'
    elif row[7]=='MAR':
        period_num = '3'
    elif row[7]=='APR':
        period_num = 4
    elif row[7]=='MAY':
        period_num = 5
    elif row[7]=='JUN':
        period_num = 6
    elif row[7]=='JUL':
        period_num = 7
    elif row[7]=='AUG':
        period_num = 8
    elif row[7]=='SEP':
        period_num = 9
    elif row[7]=='OCT':
        period_num = 10
    elif row[7]=='NOV':
        period_num = 11
    elif row[7]=='DEC':
        period_num = 12
    else:
        period_num = 'skip'

    if period_num != 'skip':
        params1 = ['batch_plnapps_oi',row[7],period_num,'20' + row[1][-2:],row[2], row[3], row[4], row[5], row[6], row[8], row[9], row[10], row[11], round(row[12],12)]
        ins_stmt1 = "insert into aif_open_interface(batch_name,period,period_num,year,col03,col04,col05,col06,col07,col09,col10,col11,col12,amount) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)"
        fdmAPI.executeDML(ins_stmt1,params1,False)

fdmAPI.commitTransaction()

回答1:

There are obviously fewer than 8 columns for the affected row. Debug using a try/except block:

for n, row in enumerate(recReader, start=1):
    try:
        month = row[7]
    except:
        print('Row {0}: {1}'.format(n, row))

As a bonus, here is a more efficient way to write your code:

months = {'JAN': 1, 'FEB': 2, 'MAR': 3, 'APR': 4, 'MAY': 5, 'JUN': 6, 
          'JUL': 7, 'AUG': 8, 'SEP': 9, 'OCT':10, 'NOV': 11, 'DEC': 12]
for row in recReader:
    month = row[7]
    period_num = months.get(month, None)

    if period_num:
        params1 = ['batch_plnapps_oi', row[7], period_num, '20' + row[1][-2:], row[2], row[3], row[4], row[5], row[6], row[8], row[9], row[10], row[11], round(row[12], 12)]
        ins_stmt1 = "INSERT INTO aif_open_interface(batch_name, period, period_num, year, col03, col04, col05, col06, col07, col09, col10, col11, col12, amount) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?)"
        fdmAPI.executeDML(ins_stmt1, params1, False)

fdmAPI.commitTransaction()

回答2:

Without seeing your .csv we can't really help you too much, but...

1. Ensure that every line in your csv has the correct format
2. Make sure that the last line in your csv is not just whitespace.
3. Look at the optional parameters in the documentation for csv.reader, specifically newline=''